Hello I have been useing airtel simcard for some months before I ported out from them .i have experianced very bad experiance from them I was useing prepid number in airtel and had lots of network problem so went to aurtel showroom to raise a complaint they assisted me to convert my prepaid number to postpaid number so that I can get better network I had converted as well but even after converting problem was same it did not got better .then again I had to wait for 90 days to convert my number to prepaid or port .it was very fraustrating and annoying airtel has forgotten thier customers.